but my problem is followin.... I live in untrusted enviroment which is
running 50 computers (it is school and packets are running up and down
everywhere). I need to use outside HTML sites and POP
accounts, but they, as many providers in Czech, don't support SSL or
anything else than just clear autentification. So is there a software
which connets onto server (for example proxy) through SSL and then

happen few times that students stole their passwords and so on and
mainly

they could steal even teacher's these days.)

Can you get a shell account on the outside of your local network?
If so SSH over to it, then access the pop mail server. Without
having a machine to serve as the endpoint for an excrypted pipe on
the outside of your network I don't see a way to secure the
communications.